Category
Amino Acids
L-theanine, L-carnitine, BCAA, NAC and other amino acids
3441Doctor's Best
L-Tryptophan 500 mg
80/100
capsule90 servings1 ingredient
3442Doctor's Best
L-Tyrosine 500 mg
80/100
capsule120 servings1 ingredient
3443
Butterfly Express
L-Lysine 500 mg
78/100
capsule100 servings1 ingredient
3444
ALR Industries
HumaPro Exotic Peach Mango Flavor
65/100
powder90 servings2 ingredients
3445
INNOSUPPS
Natural BCAA Candy Apple
83/100
powder25 servings12 ingredients
3446
INNOSUPPS
Natural BCAA + EAA Mango Twist
81/100
powder25 servings13 ingredients
3447
INNOSUPPS
Volcarn 2000 Rainbow Sherbet
74/100
liquid32 servings2 ingredients
3448MH Michael's Health Naturopathic Programs
Arginine Citrulline
71/100
tablet15 servings3 ingredients
3449
XYMOGEN
AdrenaMax
74/100
capsule40 servings2 ingredients
3450
XYMOGEN
CarniteX
74/100
capsule60 servings1 ingredient
3451
XYMOGEN
L-Theanine
83/100
capsule30 servings1 ingredient
3452
XYMOGEN
NAC
74/100
capsule30 servings1 ingredient
3453Davinci Laboratories
DL-Phenylalanine 750 mg
78/100
capsule60 servings1 ingredient
3454
Davinci Laboratories
L-Glutamine Powder
80/100
powder30 servings1 ingredient
3455
Davinci Laboratories
Maxi-HGH
83/100
powder30 servings5 ingredients
3456Davinci Laboratories
N-Acetyl Cysteine 500 mg
80/100
capsule90 servings1 ingredient
3457
Jarrow Formulas
L-Carnitine 250 mg
75/100
capsule250 servings1 ingredient
3458NOW
NAC 1,000 mg Quercetin 500 mg & Zinc 15 mg
85/100
capsule45 servings3 ingredients
3459NOW Sports
Double Strength L-Arginine 1000 mg
77/100
tablet60 servings1 ingredient
3460
Davinci Laboratories
Gluconic DMG 500 mg
78/100
tablet60 servings1 ingredient
Frequently Asked Questions
What is the best amino acids supplement?
Based on our analysis of 5,071 amino acids products, L-Tryptophan 500 mg ranks #1 with a SupplementScore of 80/100. Scores are based on label quality - dosage transparency, formulation cleanliness, and ingredient disclosure.
How are amino acids supplements scored?
Every product is scored algorithmically using data from the NIH Dietary Supplement Label Database. The SupplementScore evaluates dosage transparency (35 pts), label completeness (25 pts), formulation cleanliness (25 pts), and ingredient profile (15 pts).
Does a higher score mean the supplement works better?
No. The score reflects label quality, how transparent and clean the product label is, not clinical efficacy, bioavailability, or safety. A higher score means better label practices, not guaranteed results.